Concealed hinge



J. w. ANDERSON Nov. 2 1926.

CONCEALED HINGE INVENTOR JW Amuse Filed Feb. 9, 1925 ATTORNEYS Patented Nov. 1926.

UNITEDSTATES PATENT OFFICE.

JOHN W. ANDERSON, OF CHICAGO, ILLINOIS, ASSIGNOR TO COIRBER COMPANY, OF

AURORA, ILLINOIS, A'CORPORATION OF ILLINOIS.

CONGEALED HINGE;

Application filed February 9, 1925. Serial No. 8,029.

My invention relates to concealed hinges of the type used on automobile bodies, and it consists in the combinations, constructions, and arrangements herein described and claimed.

An object of my invention is to provide a concealed hinge having a maximum clearance as compared with its size. I accomplish this object by locating the pintle or axis of the hinge at the extreme corner of the hinge box. The hinge box on the side in which the axis is located is also very thin, thus giving further swing to the hinge arm.

A further object of my invention is to provide a hinge of the type described having a separable arm which may be readily taken apart so that the door may be readily re.- moved or replaced."

A further object of my invention is to provide a hinge of relatively light weight, but which is strong and durable owing to the fact that the pivots of the hinge'are spaced far apart to provide a long bearing.

Other objects and advantages will appear 'in the following specification, and the novel features of the invention will be particularly pointed out in the appended claims.

My invention is illustrated in the accompanying drawing, forming part of this application, in which Figure 1 is a transverse section through the hinge and through the door frame and door Figure 2 is a face view of the hinge showing the hinge arm in its open position,

Figure 3 is a sectional view of a portion of the separable hin e arm,

Figure 4 is a section along the line 44 of Figure 3, and

Figure 5 is a section along the line 5-5 of Figure 2.

The hinge which forms the subject of the present invention is an improvement over that set forth in prior applications Serial No. 464,195 of April 25, 1921 and No. 508,805, of October 19, 1921.

In carrying out my invention, I provide a hinge box portion which as will be seen from Figure 2 is U shaped in cross-section, having a central portion 1 and side portions 2. Integral with the side portions 2 are laterally extending flanges 3 provided with screw openings .4. The side members 2 have near their outer edges a reenforcement 2 which consists merely of a thickening of the plate and in this reenforcement is a groove 5 which constitutes part of the journal for the pivot members of the hinge. Adjacent tio this groove is an integral stud 6 the purpose of which will be explained later. The outside of the members 2 from one edg'e of the flange 3 to the opposite diagonal corner is made thlnner so as to provide a'shoulder along the line 7.

The hinge arm proper consists of an L shaped body portion 8 having cutaway portions 9 to clear the thickened portions 2 of the walls 2 of the box and being provided with pintle members 10, which are arranged to bear in the groove 5.

As will be seen from Figure 1 there is a shoulder 11 on each side of the arm which is arranged to engage the. portion 2 of the thickened portion 2*, this portion 2 acting as a stop for limiting the movement of the arm.

The opposite end of the L shaped arm 8 has a cutaway portion on each side thereof as shown at 12. At one end of the cutaway portion is a V shaped shoulder 13, while at the other end are cylindrical lugs 14. That portion 15 of the arm between the cutaway portions 12 is thickened as will be seen from Figures 3 and 4, and through this thickened portion a screw 16 extends, the bore in which the screw is located being threaded and the end of the screw 16 being upset so as to prevent the withdrawal of the screw, while permitting a retraction thereof Within limits.

The retaining plate which is secured to the door 26 is shown at 17 and is provided with the usual screw openings 18. It will be observed that this plate has a central opening 19 and that the corners of this opening are flanges 20 having at their ends V shaped recesses 21. These flanges have sockets 22 which are arranged to receive the cylindrical studs 14. Between the flanges 20 is a recess 23 which is designed to straddle the screw in the manner hereinafter explained.

Forming part of the hinge box is a triangular shaped cover portion 24 which is made preferably of thin stamped metal, and which is provided with openings 25 as shown 105 in the drawings.

In assembling 8 is passed up through the U shaped box portion and the pintle 1n the grooves 5. The ight metal cover nortion is now placed in position, the studs 6 passin through the openings and being rivete so as to hold the cover portion 24 securely. It will be observed that the inner corner. of this cover portion forms part of the journal for the hinge pintles 10. The edge of the cover portion rests on the shoulder 7 of the side members 2, so that the member 24 is held rigidly in position when the lugs 6 are upset or riveted. V

In connecting the arm to the plate -17, the arm is tilted slightly and then thrust into the central opening 19, the V shaped shoulders 13 entering the V- sha ed recesses 21 of the flanges 20, and then w en the arm is tilted back 111130' normal position the cylindrical lugs 14 enter the sockets 22. The

. screw16 is now tightened. The end of the late 17 in the wall of is holds the assembled for it will screw engages the the opening 19. T

arm 1n absolutely rigid position,

be observed that. the entrance of the shoulders 13 into-the sockets 21 prevents movements at these point=., while the entrance of the cylindrical lugs 14 into the sockets 22 prevents further movement, as long as the cylindrical lugs are held in the sockets 22. This last is accomplished by the screw 16 which not only holds the two together by means of its head, but by bearing on the late at the inner wall of the opening 19, it also holds it from any movement. The result is that I have provided a quickly detachable arm for the hinge which can be taken apart by a few turns of the screw, or which can be secured rigidly by a few turns.

From the foregoing description of the various parts of the device, the operation thereof may be readily understood. By 10- cating the pivotal oints of the hinge at the extreme corner of t e box, I obtain the maximum throw or clearance which it is possible to obtain from any box of given size. Furthermore, the wall of the box toward which the hinge swings when it is being opened, is comparatively thin being a thin sheet of metal. This again gives the arm a further throw. The stamped metal cover portion, as has been observed, not only forms a means for keeping out dust but it acts as part of the journal of the hin e and thus has a double function. But aside from this, it reduces the weight of the hinge without impairing the strength.

The ease with which the arm portions are detached, or secured together forms an important feature of the hinge. It obviates the necessity of taking the boxapart or any portion thereof, to remove the hinge from its bearing. It permits the hinge arm to be swung outwardly in a position where the rethe device the L shaped armortions 10 are placed- -to enter said bearing grooves, and a 'sha ed hinge arm comprisin 'taining screw is easily accessible so that a door can be quickly removed or replaced as desired.

I claim:

1. A hinge of the concealed type comprising a U shaped box member having bearing grooves at' certain outer corners thereof, a cover portion for said 'rooves an L shaped hinge arm having pintle mem ers arraiged oorretaining late secured to said L shaped arm said arm. eing arranged to swing into an be concealed by said box when the hinge is closed.

2. A hinge of the concealed type comprising a U shaped box member, a cover portion for forming with said U shaped member, a rectan ular box having an open side, said U shape member havin bearing rooves in certain corners thereo the portion of the cover adjacent said bearing grooves constituting part of the bearing, an L shaped arm having pintle members disposed at one end and arranged to enter between said bearing grooves, and the cover at a corner thereof, a removable door-retaining plate carried by the other end of said L shaped arm, said arm being arranged to enter said box when moved on said pintles so as to be entirely concealed therein.

3. A hinge of the concealed t pe comprising a rectangular box portion aving bearing grooves at the extreme ends of certain corners, an L-sha ed hinge arm pivotally mounted in said caring grooves, said L- a pair of separa 1e members, one of sai members having spaced apart sockets and the other having spaced apart shoulders, certain of said shoulders being arranged to enter certain of said sockets when the parts are tilted out of normal position, and the other shoulders being arranged to enter the remaining sockets when the parts are swung into normal position, and means for retaining the arm portions in their normal locked positions.

4. A hinge of the concealed type comprising a rectangular box portion having bearing grooves at the extreme ends of certain corners, an L-sha ed hinge arm pivotally mounted in said caring grooves, said L- shaped hinge arm comprising a pair of separable members, one of said members hav ing spaced apart sockets and the other having s aced apart shoulders, certain of said shoul ers being arranged to enter certain of said sockets when the plarts are tilted out of normal position, and t e other shoulders. being arranged to enter the remaining sockets when the parts are swung into normal position, and a screw carried by one arm portion and arranged to bear on the other arm ortion for maintaining the arm por-' tions in their normal locked position.

5. A hin e of the concealed type comprising a U- aped rectangular box portion having three-open sides, said box having bearing grooves at the extreme ends of certain corners adjacent to two of the open sides, an L-shaped hinge arm havin pivot members arranged to enter said caring grooves and being adapted to swing through oneof said open sides, and a rectangular cover plate for the other two sides, the corner of said cover plate serving as means. for retaining the pivot portions n position.

6. A hinge of the concealed type comprising a rectangular box having bearing grooves at the extreme ends of certain corners, an'L-shaped hinge arm formed oftwo separable arm members one of said arm members being provided at one end with pivot portions arranged to entersaid bearing grooves, a cover member for said box cooperating with the grooved portions of said box to provide bearings for said pivot portions,'means secured to said box for re taining said pivot portions within said grooves, a door-retaining plate secured to the other member, and means for securing said arm members together, said hinge arm being arranged to swing into and to be concealed by said box. v

7 A hinge of theconcealed type comprisin a rectangular box havin certain open si es and provided with bearing grooves at the extreme ends of certain corners adjacent to the open sides, a hinge arm having at one end a door-retaining plate and at the other end pivot members arranged to enter said bearing grooves, and a rectangular cover forsaid adjacent open sides the corner of the cover serving as a retaining member for retaining said pivot members in position.

8. A hinge of the concealed tppe comprising a rectangular box portion aving hearing grooves at the extreme ends of certain corners, .an L-shaped hinge arm having at one end a door-retaining plate and at the other end pivot members arranged to enter v 'said'bearing grooves, a cover member for said box cooperating with the grooved portions of said box to provide bearings for said pivot portions, and means secured to the box for retaining the pivot members in said grooves.

9. A hinge of the concealed t pe comprising a rectangular box portion aving bearing grooves at the extreme ends of certain corners, an L-shaped hinge arm having at one end a door-retaining plate and at the other end pivot members arranged to enter said bearing grooves, and a cover member for said box cooperating with the grooved portions of said box to provide bearings for said pivot portions.

JOHN W. ANDERSON. 

